Week 32

Abstract

Weekly Update Humans Six human cases of West Nile virus (WNV) illness were reported this week from Imperial (1), Los Angeles (2), and Tulare (3) counties. These are the first WNV human cases reported from Los Angeles and Tulare counties this year. In 2019, a total of ten human WNV cases have been reported from six counties. Of the ten reported cases, seven (70%) were classified as neuroinvasive disease and one (10%) was fatal. The median age of the individuals is 56 years (range: 15–74 years) and seven (70%) are male. In addition to the ten cases, eight asymptomatic infections have been reported from Kern (2), Madera (1), San Bernardino (2), San Joaquin (1), Stanislaus (1), and Sutter (1) counties. At this time last year, 19 human cases of WNV illness had been reported from 11 counties.